Taxa included

Hom, K. (1967). Notes on two California whip-scorpions. Pan-Pacific Entomologist 43: 216–220.

Taxon
Hubbardia belkini (McDonald and Hogue, 1957) (Schizomida: Hubbardiidae) 216–219, figs 1–3 (misidentification; see Schizomus briggsi (Rowland)), Trithyreus belkini McDonald and Hogue
Hubbardia briggsi (Rowland, 1972) (Schizomida: Hubbardiidae) 216–219, figs 1–3 (misidentification), Trithyreus belkini McDonald and Hogue